"It's the fact you have two different materials joined together subject to all sorts of differential forces including bending, thermal contraction / expansion, water pressure trying to get into the joint, end cap force creating both direct axial load and some bending which may change as the...
Manned submersible, possibly not. There already are unmanned submersible vessels using composite hulls, and they work for the depths they were designed for.
https://www.compositeenergytechnologies.com/underwater-carbon-fiber-pressure-vessels/
"Through comprehensive engineering studies...
Would you be more comfortable on the Starship re-entering from lunar transfer orbit? It hasn't even made a successful return from sub-orbital speeds, and talk about heat shield issues...
New Horizons - this is a probe that is already past Pluto (having returned some spectacular pictures of same) and planning to intercept several more Kuiper belt objects before being mothballed...something like the Voyager probes. I'm thinking NASA can lobby for more funding once they point out...
What Gr8blu said - "1. Have one or more bolts loosened (e.g. backed out), or has the bolt itself lengthened? Both can be measured and can give an indication of what is happening."
You should be marking the bolt heads after the adjustment to see if they are rotating, and/or checking bolt length...
Take a slug of fluid, and assume: random particles (milli-slugs) across the slug will nucleate to vapor if Tfluid local is > boiling point at local pressure conditions. Note that the local expansion of these nucleate sites will raise the local pressure on surrounding areas of the droplet...
Rocketdyne struggled for years to get the F1 design to run stably throughout the launch. In the end, they traded engine efficiency for stability, but it worked. Later redesigns (F1A, F1B) would have brought back a lot of efficiency, but - big engines are hard to design, and there was little...
I've seen multi-phase CFD and cruder combustion simulations (think rockets, jet engines, even motor vehicles) where fuel (or oxidizer, think liquid oxygen) droplet injection is modeled, along with combustion and heat release, and the evaporation of those droplets is tracked over time whilst the...
"Stop with practices that are detrimental to our plants ability to absorb CO2.... Like clear cutting rain forests or old growth forests."
Not sure that old growth forests are such great absorbers of CO2. At some point, old growth trees get diseased and blow down, to rot and release their...
I've had coffee chats with people who looked at bidding on replacement LORAN systems (I may not be using the correct acronym, but the function was the same, i.e. radio navigation systems for planes), the contract would be linking existing systems into a newer, upgraded, remote-monitoring...
For as-hot-rolled A36 steel, parallelism between the top and bottom faces might also come into play, as the warping of the stack creates its own perturbations of the c.g. and value of the bending moment. I.e. the offset/non-vertical alignment of the stack increases its tendency to buckle.
The Carbon River is glacier-fed, and the canyon is a mess of loosely agglomerated ash and friable andesite rock from the volcano. People are injured and killed somewhat regularly on the Carbon river, because sunshine on the Carbon glacier in the afternoon causes rapid melting and subsequent...
In the rocket biz we would braze shaped, ovalized tubes into header pipes to form interesting bits of gear like rocket nozzles and combustion chambers. Welding would likely work too, if you design the joint for weld access. As LI said, no reason that the oring has to be used in a round joint...
MoWie Steel (sounds like Bowie, of knife and/or rock star fame).
MoWow Steel
MoWie Wowee ... hmm, might be already trademarked for certain organic products...
